Sampling Distribution A computer scanner can read a bar code on a package correctly 97% of the time. One company monitors the accuracy of the scanner by ra

Sampling Distribution A computer scanner can read a bar code on a package correctly 97% of the time. One company monitors the accuracy of the scanner by ra

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A computer scanner can read a bar code on a package correctly 97% of the time. One company monitors the accuracy of the scanner by randomly sampling packages and verifying that each package has been correctly scanned. Random samples of size n = 25, 50, 100, and 200 have recently been taken with the following results. (see attached results)

To complete this activity, use Excel to:

  1. Calculate the sample proportion for each sample size. 
  2. Calculate the single-proportion sampling error for each sample size. 
  3. Calculate the probability of finding 198 correctly scanned packages, for a sample of size n=200. 
  4. Submit your work Excel file.

Sheet1

Sample Size, n  Number Correctly Scanned 
25 24
50 49
100 95
200 193

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